We challenge potential buyers to take the Trailblazer for a test drive – and then tell us how many cylinders are under the hood.

The South Korean automaker’s 3-year-old battery-electric crossover still is a standout in terms of performance, range and price.

Wrangler 4xe is noteworthy for its rough-and-tumble off-road readiness, while clocking in at nearly 30 mpg during 300 miles of road testing around metro Detroit this past spring.

Wards judges have been testing 39 of the latest internal-combustion and electrified powertrains as part of 2021 Wards 10 Best Engines & Propulsion Systems. Winners will be announced in September and will be recognized during Informa’s Automotive...